#!/usr/bin/perl
#                              -*- Mode: Cperl -*- 
# debian.postinst ---
# Author           : Manoj Srivastava ( srivasta@pilgrim.umass.edu )
# Created On       : Sat Apr 27 05:42:43 1996
# Created On Node  : melkor.pilgrim.umass.edu
# Last Modified By : Manoj Srivastava
# Last Modified On : Mon Apr 13 14:22:13 2009
# Last Machine Used: anzu.internal.golden-gryphon.com
# Update Count     : 44
# Status           : Unknown, Use with caution!
# HISTORY          :
# Description      :
#
#
#
#  arch-tag: bf48605d-f6e9-4df6-9be3-31017c6406df
#


$|=1;

# Predefined values:
my $version            = "=V";
my $move_image         = '';     # target machine defined
my $kimage             = "=K";   # Should be empty, mostly
my $image_dir          = "=D";        # where the image is located
my $clobber_modules    = '';          # target machine defined
my $postinst_hook      = '';          #Normally we do not
my $postrm_hook        = '';          #Normally we do not
my $preinst_hook       = '';          #Normally we do not
my $prerm_hook         = '';          #Normally we do not
my $ignore_depmod_err  = '';          # normally we do not
my $relink_src_link    = 'YES'; # There is no harm in checking the link
my $relink_build_link  = 'YES'; # There is no harm in checking the link
my $force_build_link   = '';    # There is no harm in checking the link
my $arch               = "=A"; #  should be same as dpkg --print-installation-architecture
my $kernel_arch        = "=B";
my $package_name       = "=ST-src-$version";
my $kernel_pkg_version = "=KPV";

die "Pre inst Internal error. Aborting." unless $version;

exit 0 if $ARGV[0] =~ /abort-upgrade/;
exit 1 unless $ARGV[0] =~ /(install|upgrade)/;

#known variables
my $image_dest      = "/";
my $realimageloc    = "/$image_dir/";
my $have_conffile   = "";
my $silent_modules  = '';
my $modules_base    = '/lib/modules';
my $CONF_LOC        = '/etc/kernel-img.conf';
# remove multiple leading slashes; make sure there is at least one.
$realimageloc  =~ s|^/*|/|o;
$realimageloc  =~ s|/+|/|o;

my $architecture;
chomp($architecture = `dpkg --print-installation-architecture`);
$architecture = "ppc" if $architecture eq "powerpc";
$architecture = "parisc" if $architecture eq "hppa";
$architecture = "mips" if $architecture eq "mipsel";
$architecture = "x86_64" if $architecture eq "amd64";

my $stop_and_read     = 0;
my $src_postinst_hook = '';
my $src_preinst_hook = '';
my $src_prerm_hook = '';
my $src_postrm_hook = '';


if (-r "$CONF_LOC" && -f "$CONF_LOC"  ) {
  if (open(CONF, "$CONF_LOC")) {
    while (<CONF>) {
      chomp;
      s/\#.*$//g;
      next if /^\s*$/;

      $src_preinst_hook  = "$1"  if /src_preinst_hook\s*=\s*(\S+)/ig;
      $src_postinst_hook = "$1"  if /src_postinst_hook\s*=\s*(\S+)/ig;
      $src_prerm_hook    = "$1"  if /src_prerm_hook\s*=\s*(\S+)/ig;
      $src_postinst_hook = "$1"  if /src_postinst_hook\s*=\s*(\S+)/ig;
    }
    close CONF;
    $have_conffile = "Yes";
  }
}

# Set up the env variable containing our arguments
my $out;
for (@ARGV) {
  s,','\\'',g;
  $out.=" '$_'";
}
$ENV{'DEB_MAINT_PARAMS'}="$out";
$ENV{'KERNEL_PACKAGE_VERSION'}="$kernel_pkg_version";

## Run user hook script here, if any
if (-d "/etc/kernel/src_preinst.d") {
  print STDERR "Examining /etc/kernel/src_preinst.d.\n";
  system ("run-parts --verbose --exit-on-error --arg=$version " .
          "--arg=$realimageloc$kimage-$version " .
          "/etc/kernel/src_preinst.d") &&
            die "Failed to process /etc/kernel/src_preinst.d";
}

if (-d "/etc/kernel/src_preinst.d/$version") {
  print STDERR "Examining /etc/kernel/src_preinst.d/$version.\n";
  system ("run-parts --verbose --exit-on-error --arg=$version " .
          "--arg=$realimageloc$kimage-$version " .
          "/etc/kernel/src_preinst.d/$version") &&
            die "Failed to process /etc/kernel/src_preinst.d/$version";
}

if (-x "$src_preinst_hook") {
    system ("$src_preinst_hook", $package, $version) &&
      warn "User hook script $src_preinst_hook failed";
}


exit 0;

__END__








